Hydroxypropyl methylcellulose yog non-ionic cellulose ether ua los ntawm ntuj polymer khoom cellulose los ntawm cov txheej txheem tshuaj. Lawv yog ib hom tshuaj tsw qab, tsis muaj ntxhiab, tsis muaj tshuaj lom dawb hmoov, uas swells hauv dej txias thiab hu ua ntshiab los yog me ntsis cloudy colloidal tov. Nws muaj cov yam ntxwv ntawm thickening, khi, dispersing, emulsifying, zaj duab xis-forming, suspending, adsorbing, gelling, nto active, tswj cov dej noo thiab tiv thaiv colloid.
Hydroxypropyl methylcellulose zoo heev tuaj yeem daws qhov teeb meem ntawm dej tuav hauv qhov kub thiab txias. Nyob rau hauv lub caij kub kub, tshwj xeeb tshaj yog nyob rau hauv kub thiab qhuav thiab nyias-txheej tsim nyob rau hauv tshav ntuj sab, high-zoo HPMC hydroxypropyl methylcellulose yuav tsum tau los txhim kho cov dej tuav ntawm lub slurry.
High-zoo hydroxypropyl methylcellulose muaj qhov zoo sib xws. Nws cov methoxy thiab hydroxypropoxy pawg yog sib npaug sib npaug ntawm cov cellulose molecular saw, uas tuaj yeem txhim kho cov pa atoms ntawm hydroxyl thiab ether bonds thiab cov dej sib txuas. Lub peev xwm los ua ke thiab tsim cov ntawv cog lus hydrogen hloov dej dawb rau hauv cov dej khi, yog li tswj tau cov dej evaporation los ntawm huab cua kub thiab ua kom cov dej tuav tau zoo.
Post lub sij hawm: May-17-2023